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FR2808945B1 - Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur - Google Patents

Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur

Info

Publication number
FR2808945B1
FR2808945B1 FR0006065A FR0006065A FR2808945B1 FR 2808945 B1 FR2808945 B1 FR 2808945B1 FR 0006065 A FR0006065 A FR 0006065A FR 0006065 A FR0006065 A FR 0006065A FR 2808945 B1 FR2808945 B1 FR 2808945B1
Authority
FR
France
Prior art keywords
reader
evaluation
field
electromagnetic transponders
transponders
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR0006065A
Other languages
English (en)
Other versions
FR2808945A1 (fr
Inventor
Luc Wuidart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0006065A priority Critical patent/FR2808945B1/fr
Priority to JP2001140158A priority patent/JP4691825B2/ja
Priority to DE60125088T priority patent/DE60125088T2/de
Priority to EP01410053A priority patent/EP1154368B1/fr
Priority to US09/853,890 priority patent/US6879246B2/en
Publication of FR2808945A1 publication Critical patent/FR2808945A1/fr
Application granted granted Critical
Publication of FR2808945B1 publication Critical patent/FR2808945B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
FR0006065A 2000-05-12 2000-05-12 Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur Expired - Fee Related FR2808945B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0006065A FR2808945B1 (fr) 2000-05-12 2000-05-12 Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur
JP2001140158A JP4691825B2 (ja) 2000-05-12 2001-05-10 読み出し機の場における電磁気トランスポンダの数の評価
DE60125088T DE60125088T2 (de) 2000-05-12 2001-05-11 Lesegerät mit Mitteln zur Bestimmung der Anzahl von elektromagnetischen Transpondern im Felde des Lesegerätes
EP01410053A EP1154368B1 (fr) 2000-05-12 2001-05-11 Lecteur avec une évaluation du nombre de transpondeurs électromagnétiques dans le champ du lecteur
US09/853,890 US6879246B2 (en) 2000-05-12 2001-05-11 Evaluation of the number of electromagnetic transponders in the field of a reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0006065A FR2808945B1 (fr) 2000-05-12 2000-05-12 Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur

Publications (2)

Publication Number Publication Date
FR2808945A1 FR2808945A1 (fr) 2001-11-16
FR2808945B1 true FR2808945B1 (fr) 2002-08-16

Family

ID=8850149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0006065A Expired - Fee Related FR2808945B1 (fr) 2000-05-12 2000-05-12 Evaluation du nombre de transpondeurs electromagnetiques dans le champ d'un lecteur

Country Status (5)

Country Link
US (1) US6879246B2 (fr)
EP (1) EP1154368B1 (fr)
JP (1) JP4691825B2 (fr)
DE (1) DE60125088T2 (fr)
FR (1) FR2808945B1 (fr)

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* Cited by examiner, † Cited by third party
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FR2796781A1 (fr) * 1999-07-20 2001-01-26 St Microelectronics Sa Dimensionnement d'un systeme a transpondeur electromagnetique pour un fonctionnement en hyperproximite
FR2808942B1 (fr) * 2000-05-12 2002-08-16 St Microelectronics Sa Validation de la presence d'un transpondeur electromagnetique dans le champ d'un lecteur a demodulation de phase
FR2812986B1 (fr) * 2000-08-09 2002-10-31 St Microelectronics Sa Detection d'une signature electrique d'un transpondeur electromagnetique
US7889058B2 (en) * 2004-07-29 2011-02-15 Mitsubishi Electric Corporation Radio-tag reading system, radio-tag reader, and radio tag
CN102177497B (zh) * 2008-07-15 2016-05-04 Opto电子有限公司 用于电子货架标签等的电力管理系统
FR2947075A1 (fr) 2009-06-19 2010-12-24 St Microelectronics Rousset Evaluation resistive du facteur de couplage d'un transpondeur electromagnetique
US8362902B2 (en) * 2009-07-24 2013-01-29 Electronics And Telecommunications Research Institute RFID reader and method for identifying RFID tag thereof and apparatus for analyzing reception power pattern
FR2976104B1 (fr) 2011-06-03 2013-11-15 St Microelectronics Rousset Securisation d'une communication entre un transpondeur electromagnetique et un terminal
FR2976102B1 (fr) 2011-06-03 2013-05-17 St Microelectronics Rousset Assistance au positionnement d'un transpondeur
FR2976103B1 (fr) 2011-06-03 2013-05-17 St Microelectronics Rousset Aide au positionnement d'un transpondeur
FR2976105B1 (fr) 2011-06-03 2013-05-17 St Microelectronics Rousset Securisation d'une communication par un transpondeur electromagnetique
KR101943082B1 (ko) * 2014-01-23 2019-04-18 한국전자통신연구원 무선 전력 송신 장치, 무선 전력 수신 장치, 및 무선 전력 전송 시스템

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Also Published As

Publication number Publication date
US20020021207A1 (en) 2002-02-21
DE60125088D1 (de) 2007-01-25
DE60125088T2 (de) 2007-07-12
JP2002009661A (ja) 2002-01-11
EP1154368A1 (fr) 2001-11-14
EP1154368B1 (fr) 2006-12-13
FR2808945A1 (fr) 2001-11-16
US6879246B2 (en) 2005-04-12
JP4691825B2 (ja) 2011-06-01

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